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Expired European patentEurope

Anti-stall controller

EP 0022818 B1 · Applicant: EATON CORPORATION

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed December 13, 1979 and granted May 18, 1983. A European patent lasts at most 20 years from filing, so its term ended December 13, 1999.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by June 13, 2005.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 13, 1979
PublishedJanuary 28, 1981
GrantedMay 18, 1983
Term endedDecember 13, 1999
Application numberEP 80900207
Classification (CPC)F16H61/46 +1 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedDec 13, 1979PublishedJan 28, 1981Patent grantedMay 18, 1983Term endedDec 13, 1999

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.